A bag contains 220 marbles of red, blue and green colour. If 20 per cent are red and 20 per cent are blue ,how many marbles are green?
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Total no. of marbles =220
No. of red marble =20%of220
=20/100×220
=44
No. of blue marble =20%of220
=20/100×220
=44
No. of green marble = 220-(44+44)
=220-88
=132
No. of red marble =20%of220
=20/100×220
=44
No. of blue marble =20%of220
=20/100×220
=44
No. of green marble = 220-(44+44)
=220-88
=132
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